Product Identification

Product Name

Ethanedionic acid

Synonyms

Dicarbolic acid dihydrate
Ethanedioic acid dihydrate

CAS

6153-56-6

Formula

C2H6O6

Molecular Weight

126.07

EINECS

205-634-3

RTECS

RO2450000

Merck

12,7043

Beilstein/Gmelin

3679436

Beilstein Reference

4-02-00-01819

EC Index Number

607-006-00-8

EC Class

harmful

Physical and Chemical Properties

Appearance

White, odorless powder.

Solubility in water

14 0 g/L

Melting Point

101

Vapor Pressure

2.7 (20 C)

Density

1.65 g/cm3 (20 C)

pKa/pKb

1.38 (pKa)

Usage

Wood bleaching and brightener, stain remover.

Vapor Density

4.3

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Do not get on skin or in eyes. Do not ingest or inhale. Use only in a chemical fume hood.

Hazards Identification

Inhalation

May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation. May cause kidney damage.

Skin

Contact with skin causes irritation and possible burns, especially if the skin is wet or moist.

Eyes

Contact with eyes may cause severe irritation, and possible eye burns.

Ingestion

Causes gastrointestinal tract burns. Causes severe pain, nausea, vomiting, diarrhea, and shock. May cause hemorrhaging of the digestive tract. Overexposure can cause hypocalcemia and kidney

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 21/22

EC Safety Phrase

S 24/25

UN (DOT)

3261

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion.

Exposure limit(s)

TLV: ppm; 1 mg/m3 (ACGIH 1989).

Poison Class

2 (Very strong toxins)

Fire Fighting Measures

Flash Point

157

Fire Fighting

Extinguish using agent most appropriate for surrounding fire.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Avoid generating dusty conditions. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Provide ventilation.

Stability and Reactivity

Disposal Code

4

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases, metals, silver, acid chlorides.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

3261

Hazard Class

8

Packing Group

I; II; III

HS Code

2917 11 00